Question

43. Regolva as equações.

a)x^2-×^4=1^2
​

Answer 1

Explicação passo-a-passo:

−

4

x

=

2

1

mmc (2,4) = 4

\begin{gathered}\frac{2x-x}{4} = \frac{2}{4} \\ \\ \ 2x -x = 2 \\ \\ x = 2\end{gathered}

4

2x−x

=

4

2

2x−x=2

x=2

prova real

\begin{gathered}\frac{2}{2} - \frac{2}{4} = \frac{1}{2} \\ \\ 1 - \frac{1}{2} = \frac{1}{2} \\ \\ \frac{2-1}{2} = \frac{1}{2} \\ \\ \frac{1}{2} = \frac{1}{2}\end{gathered}

2

2

−

4

2

=

2

1

1−

2

1

=

2

1

2

2−1

=

2

1

2

1

=

2

1